CentOS6经vmware克隆后网络无法使用解决
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vi /etc/udev/rules.d/70-persistent-net.rules
清空文件

~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=172.18.21.61
NETMASK=255.255.0.0
GATEWAY=172.18.0.1
DNS1=172.18.0.1

删除：
        UUID=
        HWADDR=

